Waste water tank for vehicle such as caravan has intermediate retaining zone containing immersed end of outlet pipe to prevent odours rising

摘要

The waste water tank (1), made e.g. from rotor-molded plastic and comprising at least one main storage zone (3) fed by an outlet pipe (2) from the vehicle, has at least one intermediate retaining zone (11) that feeds into a main storage zone and receives the immersed end (21) of the outlet pipe to prevent rising odors. The retaining zone is connected to the main storage zone via an overflow edge set with a gap (31) from the top of the tank. The outlet pipe can also have a U-bend (22).